Tudor · Black Bay One
Strap for Black Bay 36 S&G / Black - Diamond / Bracelet
Takes 19 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Black Bay One 79643-0006 (aka: M79643-0006)
Selected for the 19 mm lug width
Hammered Calfskin Strap Light Blue€98
Vintage Brown Calfskin Strap — Natural Patina€98
Hammered Pink Strap with Ecru Stitching€98
Hammered Yellow Strap with Ecru Stitching€98
Grey Hammered Leather Strap with Ecru Stitching€98
Swift Red Leather Strap€120
The Black Bay One 79643-0006 (aka: M79643-0006), seen from the bench
Frequently asked questions
What is the lug width of the Tudor Black Bay One 79643-0006?
The <a href="/pages/termine-glossario/misura-ansa">lug width</a> of the Tudor Black Bay One 79643-0006 is 19mm. This dimension is measured internally between the two lugs of the case and represents one of the most versatile sizes in contemporary strap production. A 19mm width opens access to a broad selection of aftermarket straps and allows for refined aesthetic tuning.
What is the best strap for the Tudor Black Bay One 79643-0006?
Selection depends on intended use and personal aesthetic preference. For the two-tone yellow gold and steel version, we recommend calf leather or <a href="/pages/termine-glossario/alligatore">alligator</a> in cognac or dark brown tones, which naturally dialogue with both case metals. For versatility, a rubber or military canvas strap offers comfort and practicality. Strap length must be personalised to individual wrist measurements.
How do you change the strap on the Tudor Black Bay One 79643-0006?
Strap changes are accomplished via removable spring bars positioned horizontally within the case lugs. Using a standard spring bar tool, compress the internal spring of the bar to extract it from its seat. Position the new strap within the lugs and reinsert the bar until it clicks securely. The operation is straightforward but requires care to avoid damaging the case finish. If inexperienced, professional assistance is recommended.
Which aftermarket straps are definitively compatible with the Tudor Black Bay One 79643-0006?
All straps with a 19mm <a href="/pages/termine-glossario/misura-ansa">lug width</a> are mechanically compatible. On milanostraps.it you will find a curated selection of <a href="https://milanostraps.it/collections/cinturini-orologi-per-misura-ansa-19mm">19mm straps</a> crafted with premium leathers (vegetable-tanned calf, <a href="/pages/termine-glossario/shell-cordovan">shell cordovan</a>, alligator), contrast stitching and stainless steel <a href="/pages/termine-glossario/deployante">deployante</a> or buckles. Compatibility is guaranteed by matching lug width specifications.
What is the typical lifespan of a leather strap for the Tudor Black Bay One 79643-0006?
A quality leather strap used daily maintains its aesthetic appeal for 2–4 years before showing visible signs of wear (patina, natural creasing, thinning). Longevity depends on tanning method density, moisture exposure and frequency of use. Premium leathers such as <a href="/pages/termine-glossario/shell-cordovan">shell cordovan</a> or vegetable-tanned calf age beautifully, developing character over time. Regular maintenance (drying, conditioning) significantly extends strap life.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only
